The only experience I have had with this situation is I went camping for a weekend in about late January with a friend of mine in the Uhwarrie NF. I carried my 1968 Fred Bear Kodiak Hunter recurve that I loved to go shoot stumps with because it only pulls about 43#, perfect for stump shooting because it doesnt break as many arrows as a 60# Black Widow PMA 3 will. Anyways, the temperature got down to about 4 or 5 degrees that night and I always leave my bow unstrung in the annex of my tent. After I crawled out of the sleeping bag at daylight and was waiting on the coffee to get hot on the fire, I decided to take a few shots at nice rotten pine stump we had been shooting at the day before. It took a little bit extra to get it strung but didn't think anything of it, but after I nocked an arrow and tried to draw back to anchor I felt like I was pulling my old 70 pound longbow I have hanging on the wall at home. That old 43# recurve was frozen to the point I had to leave it by the fire with me as the bow and myself warmed up so the both of us could shoot.